Home / 3,293.40-4,939.44-2,121.52

Finding the Fourth Proportional to 3,293.40, 4,939.44 and 2,121.52

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Solution

The fourth proportional to 3,293.40, 4,939.44 and 2,121.52 is: 3,181.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,293.40 : 4,939.44 = 2,121.52 : x
  2. Step 2: Convert to fraction form
    3,293.40/4,939.44 = 2,121.52/x
  3. Step 3: Cross multiply
    3,293.40x = 4,939.44 × 2,121.52
  4. Step 4: Simplify right side
    3,293.40x = 10,479,120.75
  5. Step 5: Solve for x
    x = 10,479,120.75/3,293.40
  6. Step 6: Final answer
    x = 3,181.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.